<script setup>
import { User, Lock } from '@element-plus/icons-vue'
import { onMounted, ref } from 'vue'
// 导入api
import { useRegist, useLogin } from '@/api/user.js'
// 导入仓库 存储 token
import { useUserStore } from '@/stores/modules/user.js'
import { ElMessage } from 'element-plus'

// 导入路由
import { useRouter } from 'vue-router'
const router = useRouter()
// 控制注册和登录的显示的布尔值
const isRegister = ref(true)

// 设置 token 的仓库函数
const userStore = useUserStore()
const { setToken, userSave_NP } = userStore

// 要发送请求的对象
const formModel = ref({
  username: '',
  password: '',
  repassword: ''
})

// 组件的验证规则
const rules = {
  username: [
    { required: true, message: '请输入用户名', trigger: 'blur' },
    { min: 5, max: 10, message: '用户名必须是5-10位的字符', trigger: 'blur' }
  ],
  password: [
    { required: true, message: '请输入密码', trigger: 'blur' },
    { pattern: /^\S{6,15}$/, message: '密码必须是6-15位的非空字符' }
  ],
  repassword: [
    { required: true, message: '请再次输入密码', trigger: 'blur' },
    {
      pattern: /^\S{6,15}$/,
      message: '密码必须是6-15的非空字符',
      trigger: 'blur'
    },
    {
      validator: (rule, value, callback) => {
        if (value !== formModel.value.password) {
          callback(new Error('两次输入密码不一致!'))
        } else {
          callback()
        }
      },
      trigger: 'blur'
    }
  ]
}

// 绑定 dom form
const form = ref()

// 发送注册请求
const register = async () => {
  await form.value.validate()
  const { username, password, repassword } = formModel.value
  await useRegist(username, password, repassword)
  ElMessage.success('注册成功')
  isRegister.value = false
  console.log('开始注册请求')
}

// 点击注册切换登录按钮的时候，清空要提交的对象
const toggleRL = () => {
  isRegister.value = !isRegister.value
  formModel.value = {}
}

//登录按钮
const Login = async () => {
  const { username, password } = formModel.value
  const res = await useLogin(username, password)
  setToken(res.data.token) //保存token
  if (userStore.token) {
    ElMessage.success('登录成功 token 已经存储')
    //切换到首页
    router.push('/')
  }
  // 点击登录的时候如果选中了 点击我 ，那么就存储密码名字到本地
  if (reberFlag.value) {
    reberme()
  } else {
    userSave_NP({})
  }
}

// 记住我按钮
const reberFlag = ref(false)
// 点击记住我的时候 同步点击状态
// const Click_reberme = () =>{
//     reberFlag.value = !reberFlag.value
// }
const reberme = () => {
  userSave_NP(formModel.value)
}
const loding = () => {
  isRegister.value = false //默认进入的是 登录页面
  reberFlag.value = true
  formModel.value = userStore.usrNamePassw
}
// 每次加载的时候把数据填进去
onMounted(() => {
  loding()
})

</script>

<template>
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      <el-form
        ref="form"
        :rules="rules"
        :model="formModel"
        size="large"
        autocomplete="off"
        v-if="isRegister"
      >
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input
            v-model="formModel.username"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="formModel.password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item prop="repassword">
          <el-input
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入再次密码"
            v-model="formModel.repassword"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button
            @click="register()"
            class="button"
            type="primary"
            auto-insert-space
          >
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="toggleRL()">
            ← 返回
          </el-link>
        </el-form-item>
      </el-form>
      <!-- -------------------------- -->
      <!-- 登录部分 -->
      <el-form
        ref="form"
        size="large"
        autocomplete="off"
        :rules="rules"
        :model="formModel"
        v-else
      >
        <el-form-item>
          <h1>登录</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input
            v-model="formModel.username"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            name="password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
            v-model="formModel.password"
          ></el-input>
        </el-form-item>
        <el-form-item class="flex">
          <div class="flex">
            <el-checkbox v-model="reberFlag">记住我</el-checkbox>
            <el-link type="primary" :underline="false">忘记密码？</el-link>
          </div>
        </el-form-item>
        <el-form-item>
          <el-button
            class="button"
            type="primary"
            auto-insert-space
            @click="Login()"
            >登录</el-button
          >
        </el-form-item>
        <el-form-item class="flex">
          <el-link type="info" :underline="false" @click="toggleRL()">
            注册 →
          </el-link>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
.login-page {
  height: 100vh;
  background-color: #fff;
  .bg {
    background:
      url('@/assets/logo2.png') no-repeat 60% center / 240px auto,
      url('@/assets/login_bg.jpg') no-repeat center / cover;
    border-radius: 0 20px 20px 0;
  }
  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;
    .title {
      margin: 0 auto;
    }
    .button {
      width: 100%;
    }
    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>
